Home / 141,764.88-212,705.88-71,664.72

Finding the Fourth Proportional to 141,764.88, 212,705.88 and 71,664.72

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Solution

The fourth proportional to 141,764.88, 212,705.88 and 71,664.72 is: 107,526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,764.88 : 212,705.88 = 71,664.72 : x
  2. Step 2: Convert to fraction form
    141,764.88/212,705.88 = 71,664.72/x
  3. Step 3: Cross multiply
    141,764.88x = 212,705.88 × 71,664.72
  4. Step 4: Simplify right side
    141,764.88x = 15,243,507,332.55
  5. Step 5: Solve for x
    x = 15,243,507,332.55/141,764.88
  6. Step 6: Final answer
    x = 107,526.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.